Amnio?

I’m 19w3d and we had our anatomy scan today. The doctor said everything looks great! Whew! We had the cell free dna testing which came back as low-risk and we’re waiting on the results of the testing for spins bifida. So, the doctor asked if we were interested in doing an Amnio to know for certain if the baby has any genetic conditions. I’m 34 and will be when the baby is born. How many of you had this done even if you had low risk cell free results or a normal anatomy scan? I think my boyfriend is interested and I’m not sure where I stand.